LSI SAS6160 Minimize conflicts, Only the storage within its zone or zones, SAS Zoning Overview

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Chapter 1: Overview SAS Routing and Zoning

LSISAS6160 SAS Switch User Guide

1.5SAS Routing and Zoning SAS is a connection-oriented, point-to-point technology. When a host (initiator) issues a request to read or write data, the SAS6160 switch automatically determines how to route the connection request from the initiator to the correct data storage device (target). By default, any SAS initiator or target connected to the SAS6160 switch can access any other connected initiator or target in the SAS domain, without restrictions. However, because the SAS domain grows to include multiple hosts and multiple storage volumes, you can segregate one host from another host, or restrict one host from accessing storage owned by another host.

SAS zoning partitions the SAS topology to isolate selected hosts from each other, or to allow selected hosts to access only selected storage volumes. The SAS6160 switch supports the full SAS 2.0 T10 zoning model.

There are several benefits to zoning, which can be configured accordingly:

„ Security – Zoning prevents users from accessing information that is not available to them.

 

 

„ Manageability – Zoning reflects operational categories, such as marketing or

 

 

engineering. Zoning also can partition hosts that run different operating systems, to

 

 

minimize conflicts.

 

 

„ Performance – Zoning enables faster boot time because the host must discover

 

 

only the storage within its zone or zones.

1.5.1

SAS Zoning Overview

SAS zoning access control is implemented by linked switch/expander devices, with

 

 

zoning enabled. These devices define a Zoned Portion of a Service Delivery System

 

 

 

 

(ZPSDS). No host device intervention is required. Each zoning switch/expander device

 

 

maintains an identical zone permission table, so zone access control is maintained

 

 

across the entire ZPSDS.

Initiators and targets see only the portions of the ZPSDS to which they are assigned in the zone permission table. These zoned portions are called zone groups. Zone groups are activated when they belong to a set. When the set is enabled, the zoning is enforced. When the set is disabled, the zoning disappears. There can be more than one set in a ZPSDS, and initiators and targets can belong to more than one set, but only one set can be active. In addition, there can be more than one ZPSDS in a SAS domain.

A ZPSDS has a zone manager for its configuration and management. The SDM utility (see Chapter 3, SAS Domain Manager Graphical User Interface) is embedded in the SAS6160 switch to configure the zone manager.

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LSI Corporation September 2010

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Contents LSISAS6160 SAS Switch Revision History Table of Contents SAS Domain Manager Command Line Interface Features ChapterSerial Attached Scsi and the SAS6160 Switch LSISAS6160 SwitchLSISAS6160 Resource Management Block Diagram of the LSISAS6160 Switch SAS Phys, Ports, and Connectors Link between Two Single SAS PhysNarrow and Wide SAS Ports SAS Connectors and Cabling Mini SAS 4x CableMinimize conflicts Only the storage within its zone or zonesAcross the entire Zpsds SAS Zoning OverviewGroups and zone sets manually by using the SDM utility Following figure shows a simple example of zoningCreating SAS Zones Overview SAS Routing and Zoning Configuration for Zoning Example Connecting Devices to the SAS6160 Switch Creating Zone GroupsExample 1, Multiple Servers and JBODs Example 3, Multiple Servers and a Cascading Switch Example 4, High Availability Example 5, Large Data Storage Topology Example 6, Cascaded Switches Example 7, Switches in a Star Tree Configuration Unpacking the Switch Identifying Switch ComponentsTo interpret the LEDs on the switch Carton contains the following itemsInstalling the SAS6160 Switch SAS6160 ConnectorsCables SAS6160 LEDsRack. These options are shown in the following figure Mounting Shelf in a Rack Connecting to a Host Changing the Default Static IP Address Setting a Static IP AddressExit SDM-GUI and power cycle the switch Exit SDM-CLI and power cycle the switchUsing SDM-GUI For exampleConnecting SAS and Sata Hardware Safety Notices 1 FCCCanada Mark Vcci Bsmi 5 CCC Installation and Hardware Setup Safety Notices SDM-GUI Accounts Starting SDM-GUIOptions Embedded SDM only supports a single domainFile, Server, and Help Menu Options Information is available to both admin and user accounts Views TabFor zoning View End Device TableAlias Table View Zone Groups View Zone GroupsView Zone Sets View Zone SetsDomain Tab This section, click the hyperlinks on the Domain tabNode100, and so on Alias ManagementView/Delete Aliases command Domain. You also can also this command to delete aliasesView/Delete Aliases Connector Wizard Zone set and the two associated zone groupsBox and clicking the Delete button Group to communicate with each otherGuide you through the configuration process Maximum number of 248, the wizard displays an error messageCheck box and clicking the Delete button Zone group to communicate with each otherManually Configure Zone Groups Create Zone Group Create Zone GroupTime of activation. shows the View Zone Group window View Zone GroupModify Zone Group Delete Zone GroupMaximum password length is 32 characters Binary 0, as defined by the SAS 2.0 specificationPassword MatrixView Zone Set window Zone setView Zone Set Modify Zone SetActivate/Deactivate Zone Set Activate/Deactivate Zone SetWindow and then clicking Delete Delete Zone SetDevices Tab Device Tree and Properties TabSelected device. In , the domain properties are shown Following figure shows the Properties tabProperties Tab Background loop Environmentals TabThose connections Following figure shows the Attached Devices tabAttached Devices Tab Selected expander Following figure shows the Phys tabZone Group Tab Zone Group TabThis tab contains the following commands Successful updateUpdate Firmware Operations TabFollowing figure shows the Enable/Disable/Reset window Enable/Disable/ResetReset Switch PhysConfigure IP As shown in the following figuresCommand Usage Syntax Command argumentsSDM-CLI Commands Help command„ help command Domain focus domain namePasswd admin user „ passwd admin„ passwd user Exit„ alias delete „ show alias „ show phy„ show zonegroup „ show zoneset„ zonegroup add name sas addressaliasphy „ zonegroup create name„ zonegroup delete single name „ zonegroup delete all noconfirmSet membership „ zoneset activate name„ zoneset add name zone group zone group „ zoneset create nameSample Output for Show Command „ zoneset passwdSdmcli show alias Sdmcli show alias CalhounSdmcli show device Calhoun Sdmcli show domain Sdmcli show phyShow domain Show phyAlias Phy Device Capabilities SAS Address Type Sdmcli show phy CalhounRA Routing Attributes VP Virtual PHY Zone Grp Show phy aliasZoning Active Zone Group Number Zoning Inactive * phy may be assigned to a zone groupSdmcli show phy Lincoln01 Sdmcli show versionSDM-CLI Version SDM-D Version Show phy alias phySdmcli show zonegroup ZoneOne#001 Sdmcli show zoneset activeShow zoneset data name Sdmcli show zoneset data ZoneOne Show zonegroup nameXip -i get avail Xip -i 500062b15555557f get expTroubleshooting
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